Broadcom Clock Drivers & Buffers 21

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Part	Manufacturer	Logic IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	Input Conditioning	No. of Functions	Technology	Nominal Supply Voltage / Vsup (V)	Power Supplies (V)	No. of Inverted Outputs	Package Style (Meter)	Package Equivalence Code	Propagation Delay (tpd)	Maximum I (ol)	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Output Characteristics	Maximum Same Edge Skew (tskwd)	Minimum Operating Temperature	Terminal Finish	No. of True Outputs	Terminal Position	Minimum fmax	JESD-30 Code	Maximum Supply Voltage (Vsup)	Maximum Seated Height	Width	Qualification	Minimum Supply Voltage (Vsup)	Additional Features	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	Family
L-LCK4012-DB	Broadcom
LCK4994KB-DT	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	GULL WING	100	LFQFP	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL MUX	1		2.5	2.5/3.3	0	FLATPACK, LOW PROFILE, FINE PITCH	QFP100,.63SQ,20			Clock Drivers	.5 mm	85 Cel	3-STATE	.25 ns	-40 Cel	TIN LEAD	16	QUAD	200 MHz	S-PQFP-G100	2.75 V	1.6 mm	14 mm	Not Qualified	2.25 V	ALSO OPERATES WITH 3.3V SUPPLY	e0	30	225	14 mm	4994
LCK4310GF-DB	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL MUX	1	ECL	2.5	+-2.5/+-3.3	0	CHIP CARRIER	LDCC28,.5SQ	.8 ns		Clock Drivers	1.27 mm	85 Cel		.04 ns	-40 Cel	TIN LEAD	8	QUAD		S-PQCC-J28		4.572 mm	11.506 mm	Not Qualified		ALSO OPERATES WITH 3.3V SUPPLY	e0	30	225	11.506 mm	4000/14000/40000
LCK4310GF-DT	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL MUX	1	ECL	2.5	+-2.5/+-3.3	0	CHIP CARRIER	LDCC28,.5SQ	.8 ns		Clock Drivers	1.27 mm	85 Cel		.04 ns	-40 Cel	TIN LEAD	8	QUAD		S-PQCC-J28		4.572 mm	11.506 mm	Not Qualified		ALSO OPERATES WITH 3.3V SUPPLY	e0	30	225	11.506 mm	4000/14000/40000
LCK4993YH-DB	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	BALL	100	LBGA	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL MUX	1		2.5	2.5/3.3	0	GRID ARRAY, LOW PROFILE	BGA100,10X10,40			Clock Drivers	1 mm	85 Cel	3-STATE	.25 ns	-40 Cel	TIN LEAD	16	BOTTOM	100 MHz	S-PBGA-B100	2.75 V	1.45 mm	11 mm	Not Qualified	2.25 V	ALSO OPERATES WITH 3.3V SUPPLY	e0	30	240	11 mm	4993
LCK4993KB-DT	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	GULL WING	100	LFQFP	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL MUX	1		2.5	2.5/3.3	0	FLATPACK, LOW PROFILE, FINE PITCH	QFP100,.63SQ,20			Clock Drivers	.5 mm	85 Cel	3-STATE	.25 ns	-40 Cel	TIN LEAD	16	QUAD	100 MHz	S-PQFP-G100	2.75 V	1.6 mm	14 mm	Not Qualified	2.25 V	ALSO OPERATES WITH 3.3V SUPPLY	e0	30	225	14 mm	4993
LCK4012-DB	Broadcom
LCK4973	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	GULL WING	52	TQFP	SQUARE	PLASTIC/EPOXY	YES	MUX	1		2.5		0	FLATPACK, THIN PROFILE					.65 mm	85 Cel	3-STATE	.25 ns	-40 Cel	TIN LEAD	12	QUAD	100 MHz	S-PQFP-G52	2.625 V	1.2 mm	10 mm	Not Qualified	2.375 V	ALSO OPERATES AT 3.3V SUPPLY	e0	30	240	10 mm	4973
LCK4310	Broadcom
EQ6600-L3	Broadcom	PLL BASED CLOCK DRIVER	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	STANDARD	1	CMOS	5	3.3/5	0	CHIP CARRIER	LDCC28,.5SQ		16 Amp	Clock Drivers	1.27 mm	70 Cel		.25 ns	0 Cel	TIN LEAD	10	QUAD	133 MHz	S-PQCC-J28	5.25 V	4.6 mm	11.51 mm	Not Qualified	3 V	O/P FREQUENCY RATIOS ARE 0.5F/1.0F; WITH DEDICATED FEEDBACK OUTPUT; MEETS PENTIUM SKEW REQUIREMENTS	e0			11.51 mm	6600
LCK4994YH-DT	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	BALL	100	LBGA	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL MUX	1		2.5	2.5/3.3	0	GRID ARRAY, LOW PROFILE	BGA100,10X10,40			Clock Drivers	1 mm	85 Cel	3-STATE	.25 ns	-40 Cel	TIN LEAD	16	BOTTOM	200 MHz	S-PBGA-B100	2.75 V	1.45 mm	11 mm	Not Qualified	2.25 V	ALSO OPERATES WITH 3.3V SUPPLY	e0	30	240	11 mm	4994
EQ6600-L1	Broadcom	PLL BASED CLOCK DRIVER	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	STANDARD	1	CMOS	5	3.3/5	0	CHIP CARRIER	LDCC28,.5SQ		16 Amp	Clock Drivers	1.27 mm	70 Cel		.25 ns	0 Cel	TIN LEAD	10	QUAD	100 MHz	S-PQCC-J28	5.25 V	4.6 mm	11.51 mm	Not Qualified	3 V	O/P FREQUENCY RATIOS ARE 0.5F/1.0F; WITH DEDICATED FEEDBACK OUTPUT; MEETS PENTIUM SKEW REQUIREMENTS	e0			11.51 mm	6600
LCK4993KB-DB	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	GULL WING	100	LFQFP	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL MUX	1		2.5	2.5/3.3	0	FLATPACK, LOW PROFILE, FINE PITCH	QFP100,.63SQ,20			Clock Drivers	.5 mm	85 Cel	3-STATE	.25 ns	-40 Cel	TIN LEAD	16	QUAD	100 MHz	S-PQFP-G100	2.75 V	1.6 mm	14 mm	Not Qualified	2.25 V	ALSO OPERATES WITH 3.3V SUPPLY	e0	30	225	14 mm	4993
EQ6600	Broadcom	PLL BASED CLOCK DRIVER	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	STANDARD	1	CMOS	5	5	0	CHIP CARRIER	LDCC28,.5SQ		16 Amp	Clock Drivers	1.27 mm	70 Cel		.25 ns	0 Cel	TIN LEAD	10	QUAD	80 MHz	S-PQCC-J28	5.25 V	4.6 mm	11.51 mm	Not Qualified	4.75 V	O/P FREQUENCY RATIOS ARE 0.5F/1.0F; WITH DEDICATED FEEDBACK OUTPUT; MEETS PENTIUM SKEW REQUIREMENTS	e0			11.51 mm	6600
LCK4994KB-DB	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	GULL WING	100	LFQFP	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL MUX	1		2.5	2.5/3.3	0	FLATPACK, LOW PROFILE, FINE PITCH	QFP100,.63SQ,20			Clock Drivers	.5 mm	85 Cel	3-STATE	.25 ns	-40 Cel	TIN LEAD	16	QUAD	200 MHz	S-PQFP-G100	2.75 V	1.6 mm	14 mm	Not Qualified	2.25 V	ALSO OPERATES WITH 3.3V SUPPLY	e0	30	225	14 mm	4994
LCK4993YH-DT	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	BALL	100	LBGA	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL MUX	1		2.5	2.5/3.3	0	GRID ARRAY, LOW PROFILE	BGA100,10X10,40			Clock Drivers	1 mm	85 Cel	3-STATE	.25 ns	-40 Cel	TIN LEAD	16	BOTTOM	100 MHz	S-PBGA-B100	2.75 V	1.45 mm	11 mm	Not Qualified	2.25 V	ALSO OPERATES WITH 3.3V SUPPLY	e0	30	240	11 mm	4993
L-LCK4953	Broadcom	PLL BASED CLOCK DRIVER	COMMERCIAL	GULL WING	32	LQFP	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL	1		3.3	3.3	0	FLATPACK, LOW PROFILE	QFP32,.35SQ,32	7 ns	30 Amp	Clock Drivers	.8 mm	70 Cel	3-STATE	.075 ns	0 Cel	MATTE TIN	8	QUAD	250 MHz	S-PQFP-G32	3.465 V	1.6 mm	7 mm	Not Qualified	3.135 V		e3			7 mm	4953
LCK4953	Broadcom	PLL BASED CLOCK DRIVER	COMMERCIAL	GULL WING	32	LQFP	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL	1		3.3	3.3	0	FLATPACK, LOW PROFILE	QFP32,.35SQ,32	7 ns	30 Amp	Clock Drivers	.8 mm	70 Cel	3-STATE	.075 ns	0 Cel	TIN LEAD	8	QUAD	250 MHz	S-PQFP-G32	3.465 V	1.6 mm	7 mm	Not Qualified	3.135 V		e0	30	240	7 mm	4953
EQ6600-L7	Broadcom	PLL BASED CLOCK DRIVER	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	STANDARD	1	CMOS	3.3	3.3	0	CHIP CARRIER	LDCC28,.5SQ		16 Amp	Clock Drivers	1.27 mm	70 Cel		.25 ns	0 Cel	TIN LEAD	10	QUAD	170 MHz	S-PQCC-J28	3.6 V	4.6 mm	11.51 mm	Not Qualified	3 V	O/P FREQUENCY RATIOS ARE 0.5F/1.0F; WITH DEDICATED FEEDBACK OUTPUT; MEETS PENTIUM SKEW REQUIREMENTS	e0			11.51 mm	6600
LCK4994YH-DB	Broadcom	PLL BASED CLOCK DRIVER	INDUSTRIAL	BALL	100	LBGA	SQUARE	PLASTIC/EPOXY	YES	DIFFERENTIAL MUX	1		2.5	2.5/3.3	0	GRID ARRAY, LOW PROFILE	BGA100,10X10,40			Clock Drivers	1 mm	85 Cel	3-STATE	.25 ns	-40 Cel	TIN LEAD	16	BOTTOM	200 MHz	S-PBGA-B100	2.75 V	1.45 mm	11 mm	Not Qualified	2.25 V	ALSO OPERATES WITH 3.3V SUPPLY	e0	30	240	11 mm	4994
LCK4972	Broadcom	PLL BASED CLOCK DRIVER	OTHER	GULL WING	52	TQFP	SQUARE	PLASTIC/EPOXY	YES	MUX	1		2.5		0	FLATPACK, THIN PROFILE					.65 mm	85 Cel	3-STATE	.25 ns	0 Cel	TIN LEAD	12	QUAD	100 MHz	S-PQFP-G52	2.625 V	1.2 mm	10 mm	Not Qualified	2.375 V	3.3V SUPPLY ALSO AVAILABLE	e0	30	240	10 mm	4972

Clock Drivers & Buffers

Clock drivers and buffers are two electronic components commonly used in digital systems to control the timing and distribution of clock signals.

Clock drivers are electronic components that generate a clock signal and distribute it to multiple components or devices within a digital system. The clock signal is a periodic waveform that synchronizes the timing of different operations within the system. The clock driver typically amplifies and shapes the clock signal to ensure that it meets the timing requirements of the system.

Buffers, on the other hand, are electronic components that amplify and isolate signals. In digital systems, buffers are often used to distribute clock signals to multiple components without degrading the quality of the signal. Buffers can help to reduce signal distortion, noise, and jitter, which can be particularly important in high-speed digital systems.

Buffers can also be used to isolate signals and prevent interference between different components or devices. They can be particularly useful in situations where the output of one device or component could damage another device or component.

Clock drivers and buffers can be used together to distribute clock signals throughout a digital system while maintaining signal integrity. The clock driver generates the clock signal and distributes it to the buffers, which then amplify and isolate the signal before distributing it to the various components or devices within the system.